What does thin mean in cooking?

thin means: You can dilute the mixture by adding liquid. (in Cooking Dictionary)

What else does thin mean?

It is usually very small from one side to the other, and often in the smallest solid dimension. (in Merlin Dictionary)

Fine, but not great in cross-section or diameter. (in Merlin Dictionary)

A person who is thin or has little body fat or flesh. (in Merlin Dictionary)

It is not dense, concentrated or overwhelming; it’s sparse. (in Merlin Dictionary)

Rarer than usual (in Merlin Dictionary)

It flows with relative ease, not viscous. (in Merlin Dictionary)

Limited supply or provision; few. (in Merlin Dictionary)

A low volume of transactions. (in Merlin Dictionary)

Flimsy; lacking substance or force (in Merlin Dictionary)

Tinny is a lack of resonance and fullness. (in Merlin Dictionary)